-er c-- ccc ccd cce ccg ccn cco ccr ccs cdc cdd cde cdg cdn cdo cdr cds ce- cec ced cee ceg cen ceo cer ces cgc cgd cge cgg cgn cgo cgr cgs cn- cnc cnd cne cng cnn cno cnr cns co- coc cod coe cog con coo cor cos crc crd cre crg crn cro crr crs csc csd cse csg csn cso csr css dcc dcd dce dcg dcn dco dcr dcs ddc ddd dde ddg ddn ddo ddr dds de- dec ded dee deg den deo der des dgc dgd dge dgg dgn dgr dgs dnc dnd dne dng dnn dno dnr dns doc dod doe dog don doo dor dos drc drd dre drg drn dro drr drs dsc dsd dse dsg dsn dso dsr dss ec- ecc ecd ece ecg ecn eco ecr ecs ed- edc edd ede edg edn edo edr eds eec eed eee eeg een eeo eer ees egc egd ege egg egn ego egr egs en- enc end ene eng enn eno enr ens eo- eoc eod eoe eog eon eoo eor eos erc erd ere erg ern ero err ers es- esc esd ese esg esn eso esr ess g-d gcc gcd gce gcg gcn gco gcr gcs gdc gdd gde gdn gdo gdr gds ge- gec ged gee geg gen geo ger ges ggc ggd ggg ggn ggo ggr ggs gnc gnd gne gnn gno gnr gns goc god goe gog gon goo gor gos grc grd gre grg grn gro grr grs gsc gsd gse gsg gsn gso gsr gss ncc ncd nce ncg ncn nco ncr ncs ndc ndd nde ndg ndn ndo ndr nds ne- nec ned nee neg nen neo ner nes ngc ngd nge ngg ngn ngo ngs nnc nne nng nnn nno nns no- noc nod noe nog non noo nor nos nrc nrd nre nrg nrn nro nrr nrs nsc nsd nse nsg nsn nso nsr nss oc- occ ocd ocg ocn oco ocr ocs odc odd ode odg odn odo odr ods oec oed oee oeg oen oeo oer oes ogc ogd oge ogg ogn ogo ogs on- onc ond one ong onn ono onr ons oo- ooc ood oog oon ooo oor oos or- orc ord ore org orn oro orr ors os- osc osd ose osg osn oso osr oss rcc rcd rce rcg rcn rco rcr rcs rdc rdd rde rdg rdn rdo rdr rds re- rec red ree reg ren reo rer res rgc rgd rge rgg rgn rgo rgr rgs rnc rnd rng rnn rno rnr rns roc rod roe rog ron roo ror ros rrc rrd rrg rrn rrr rrs rsc rsd rse rsg rsn rso rsr rss scc scd sce scg scn sco scr scs sdc sdd sde sdg sdn sdo sdr sds se- sec sed see seg sen seo ser ses sgc sgd sge sgg sgn sgo sgr sgs snc snd sne sng snn sno snr sns soc sod soe sog son soo sor sos sr- src srd sre srg srn sro srr srs ss- ssc ssd sse ssg ssn sso ssr sss